A multiple pregnancy is the presence of two or more fetuses growing in the uterus. A pregnancy of twins or more is considered high-risk because complications and premature birth are more common than in pregnancies of one fetus.
|Primary Medical Reviewer||Sarah Marshall, MD - Family Medicine|
|Specialist Medical Reviewer||William Gilbert, MD - Maternal and Fetal Medicine|
|Last Revised||July 8, 2011|
WebMD Medical Reference from Healthwise